The spill has reportedly also spread to East Coast Park.
ICA has issued warnings for travellers to check traffic conditions before departing.
One of the suspects had a lengthy criminal record with 38 charges related to drugs.
Bedok Mall has refuted the claims.
The woman was hospitalised with serious injuries that required surgery.
Travellers using the checkpoints during the period are advised to allow for additional time for immigration clearance.
A few outlets near the affected area in SkyAvenue will be temporarily closed.
71 suspected drug offenders were arrested during the raids from 10-14 June.
The truck's front wheel ended up on top of the barrier.
Thick grey smoke was seen billowing from the vicinity of First World Hotel.